Driving in Scotland - part 2

As if driving in Scotland wasn't hard enough and dangerous enough already, Transport Scotland have a novel way of distracting drivers.  The illuminated signs on motorways have a purpose: to tell drivers when there's a hazard ahead, or inform them about how long it might take to get to a point further along their journey.  However, north of the border they are used to annoy and to help your attention wander.

Heading up the M6, all is sane, but then you hit the A74/M74, and the madness starts - it also features on the M8 and the Glasgow motorway system. (you'll note that punctuation doesn't figure on the signs).

'Bin your litter Other people do'
'Picking up your litter risks workmens lives' - I wasn't sure how my picking up my litter endangered anyone, but then I realised this one was ambiguous as well as being daft
'Drive smart save fuel' - an advert for Smart cars?
'Check your tyre pressure regularly' - but hopefully not at 70 mph in the second overtaking lane.
'Check your mirror for bikes' - I did, and there were none hanging off them
'Could you car share'
'Think about car share' - actually, I was thinking about Tunnock's caramel wafers until you distracted me
'Soft tyres waste fuel' - soft signs waste lives!
'Wear seat belts its the law'
'Car sharing save money reduce emissions' - since when has that been a sentence?
'Be a courteous driver' - wasted on me as I was by then screaming 'F*** Off!' at the signs.
'Dont drive and take drugs' - are prescription drugs included in this?

Why do they do this?  Does some overpaid bureaucrat sit at a computer typing in platitudes all day long, or are they randomly generated? 

Does Transport Scotland seriously believe, that as I speed up the M74, my driving experience is enhanced by this glib, fatuous nonsense?  If they want to improve the standard of driving in Scotland maybe they should try:

'Indicate occasionally' or 'Give us a clue what you intend to do next'
'Try driving in the driving lane rather than the second overtaking lane'
'Try driving in lanes rather than straddling them'

Is this really what devolved government has given Scotland - the right to become a laughing stock?

By the way, should anyone be incensed about these two most recent posts to my blog, I'm a Scot so I'm allowed to say what I like about my fellow countrymen and countrywomen!